JPH0714057Y2 - Safe driving device for vehicles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a vehicle safety driving device, and more particularly to a vehicle safety driving device capable of driving a warning means at the maximum vehicle speed.

(Prior Art) Various types of safe driving devices for vehicles are used in order to ensure the safety when the vehicle is traveling, especially when traveling at high speed.

For example, when the vehicle speed exceeds the set maximum vehicle speed, a warning lamp or warning buzzer that is a warning means is driven to notify the driver that the vehicle speed is over, or the set maximum vehicle speed is exceeded. And the fuel cut to the internal combustion period is performed, and the excessive increase of the vehicle speed is regulated.

(Problems to be solved by the invention) However, when the vehicle is traveling, the driving conditions differ depending on the road condition, the traveling purpose, the peculiarity of the load, and the like. For this reason, it is rather a problem to drive under a condition that is uniformly set in advance, which rather increases fatigue of the driver both physically and mentally.

An object of the present invention is to provide a vehicle safe driving device that allows a driver to have selectivity.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention provides a normally closed highest gear detection switch that is turned off when it is detected that the highest gear of a vehicle transmission is selected. A vehicle speed detection switch that outputs an ON output when the vehicle speed exceeds a set value, a warning sound generation means that is connected to a power source when the vehicle speed detection switch is on, and a fuel regulation actuator that can regulate the fuel supply amount to the internal combustion period. , A solenoid valve for switching the fuel regulation actuator to the non-regulation position when turned on and to the regulation position when turned off, and the above-mentioned highest stage detection switch and the bypass circuit of the highest stage detection switch in which the solenoid valves are connected in parallel with each other. A solenoid valve drive circuit connected to a power source via a first contact, a first contact provided on the drive circuit of the warning sound generating means, and a second contact provided on the bypass circuit of the highest stage detection switch. The points are arranged side by side in two rows, and both the contacts are turned on so that the drive circuit of the warning sound generating means and the detour circuit of the highest stage detection switch are communicated with each other, and both the contacts are turned off. It is characterized in that the detour circuit and the drive circuit are provided so as to be selectable between a speed limiting state in which they are cut off.

(Operation) The highest stage detection switch, which is equipped with a drive circuit for the warning sound generation means, which is formed by sequentially connecting the vehicle speed detection switch, the warning sound generation means, and the first contact of the vehicle speed limit switch, and is connected in parallel to the solenoid valve, and It is equipped with a bypass circuit for the highest stage detection switch consisting of the second contact point of the vehicle speed limit switch, and when both the first and second contact points of the vehicle speed limit switch are turned on,
It can be switched to a speed warning state in which the drive circuit of the warning sound generating means and the detour circuit of the highest stage detection switch are in communication with each other, and when both contacts are turned off, the detour circuit and the drive circuit are turned off respectively. You can switch. By switching the speed limit switch in this way, the driver can select a vehicle speed warning state in which the warning sound generating means can be driven and a speed limit state in which the fuel control actuator for controlling the fuel supply amount can be driven.

(Embodiment) FIG. 1 shows a circuit diagram of a vehicle safety driving device as one embodiment of the present invention.

Here, the power source 1 includes a first fuse 2 and a second fuse 3
The vehicle speed detection switch 4 and the vehicle speed limit switch 5 are connected via the.

The speed detection switch 4 is used by being incorporated in the levo tachograph 6. This Levo tachograph 6 is a well-known instrument that continuously and automatically records the operation status of a car.
The internal circuit has three warning switches and one speed detection switch 4.

Here, the three speed warning switches are a first warning switch SW1 that is turned on when the vehicle speed reaches the first set speed V1, and a second switch that is turned on when the vehicle speed reaches the second set speed V2 (V1 <V2).
The switch SW2 for warning and the vehicle speed are the third set speed V3 (V2 <V
It is composed of a third warning switch SW3 which is turned on when reaching 3), and a speed detection switch 4. First, second, and third speed indicator lights (not shown) are connected to these first, second, and third warning switches. A warning lamp 8 and a warning buzzer 9 are connected to the external connection terminal 7 of the speed detection switch 4, respectively.

As shown in FIG. 2, the warning lamp 8 can light up and display the display surface on the dash panel 24 of the driver's seat, and is arranged in the vicinity of other lighting display portions.

The warning buzzer 9 is connected to the power source 1 via the speed detection switch 4, and the other end is grounded via the buzzer switch 11 and the first contact 12 of the vehicle speed limit switch 5.

The buzzer switch 11 is a normally-closed switch arranged between the buzzer 9 and the first contact 12, and is turned off by a driver at a desired time to selectively turn the warning buzzer 9 as a warning sound generating means into a non-driving state. Can be held at Reference numeral 10 is a buzzer switch lamp that lights up when the buzzer switch is turned on. The buzzer switch 11 and the buzzer switch lamp 10 may be optionally excluded.

The vehicle speed limit switch 5 has first and second contacts 12 and 13 arranged in two lines.
Which are provided with contacts 15, 16 which are switched together by a single knob 14. Here, the contact piece 15 is formed so as to open and close the first contact 12, and the piece 16 is provided with the second and third contacts 13 and 17.
It is formed so as to switch and contact. The third
An ON indicator lamp 18 is connected to the contact point 17.

The solenoid valve 20 is connected to the power supply 1 via the second contact 13 and the highest stage detection switch 19 which are connected in parallel with each other.

Here, the solenoid valve 20 is an on-off valve that opens and closes the high-pressure air pipe of the fuel regulation actuator 21, and supplies high-pressure air to the fuel supply actuator 21 when the exciting current flows,
It is configured to stop the supply of high pressure air at the time of off when the exciting current does not flow. The fuel regulating actuator 21 is an air cylinder, and its piston 211 is connected via a lever 23 to a rack (not shown) of a fuel injection pump 22 that controls the amount of fuel supplied to the internal combustion engine. This fuel regulating actuator 21 holds the lever 23 side in the non-regulating position while receiving high pressure air from an air tank (not shown),
The internal combustion engine is driven in a steady state, and the lever 23 side is held at the regulation position while not receiving the steady state, and the output of the internal combustion engine is reduced and maintained to a predetermined state.

The highest stage detection switch 19 is a normally closed switch, is installed inside a mission in a power transmission system of a vehicle (not shown), and is configured to be turned off when the highest stage is selected. In addition, when shifting to the highest stage, the vehicle speed is 95 [km
/ H], the gear ratios and the like of the gear train in the mission of this vehicle are set so as to be smoothly performed.

Such a safe driving device for a vehicle has the following two features when the vehicle is running.
You can select one of two safe driving modes.

First, in the first safe driving mode in which the speed warning state is maintained, the vehicle speed limit switch 5 is set to the first and second contact points 1.
The switching state (state shown by the solid line in FIG. 1) in which the switches 2 and 13 are turned on is entered. In this case, only the buzzer switch light 10 is on. Here, when the vehicle speed is 95 [km / H] or less, the speed detection switch 4 is kept off, and the warning lamp 8 and the warning buzzer 9 are kept in the non-driving state.

When the vehicle speed exceeds 95 [km / H], the speed detection switch 4 is turned on, and the warning lamp 8 and the warning buzzer 9 are activated.

At this time, even if the highest stage detection switch 19 is turned off, the drive current is flowing from the second contact 13 side to the solenoid valve 20, and the fuel regulating actuator 21 is held in the non-regulating position. .

Next, in the second safe driving mode in which the speed limit state is maintained, the vehicle speed limit switch 5 has the first and second contact points.
Both 12 and 13 are turned off and the third contact is turned on. In this case, the ON indicator lamp 18 is turned on and the buzzer switch lamp 10 is turned off.

Here, when the vehicle speed is 95 [km / H] or less, the speed detection switch 4 is turned off, and the warning lamp 8 and the warning buzzer 9 are kept in the non-driving state.

Next, when the vehicle speed exceeds 95 [km / H] and the mission (not shown) is switched to the highest stage, the speed detection switch 4 is turned on, the warning lamp 8 is in the driving state, and the warning buzzer 9 is in the non-driving state. Will be held until now.

At this time, the highest stage detection switch 19 is turned off,
Moreover, since the second contact 13 is also off, the drive current does not flow through the solenoid valve 20, and the fuel regulation actuator 21 holds the lever 22 of the fuel injection pump 22 at the regulation position to bring the output of the internal combustion engine to a predetermined state. The vehicle speed is reduced to a predetermined value.

In the above process, if it is desirable to keep the warning buzzer 9 in the non-driving state at all times, the buzzer switch 11 may be turned off.

The vehicle speed limit switch 5 described above is turned on when the vehicle speed exceeds 95 [km / H], but this maximum vehicle speed value can be arbitrarily set to another value.

(Effect of the Invention) As described above, according to the present invention, when both the first and second contacts of the vehicle speed limiting switch are turned on, the drive circuit of the warning sound generating means and the bypass circuit of the highest stage detection switch are provided. It is possible to switch to a speed warning state in which they communicate with each other, and when both contacts are turned off, it is possible to switch to a speed limit state in which the same bypass circuit and the same drive circuit are cut off respectively. It is possible to select a vehicle speed warning state in which the generation means can be driven and a speed limit state in which a fuel regulation actuator that regulates the fuel supply amount can be driven.
Therefore, it is possible to easily carry out safe driving in the vehicle speed warning mode and the speed limit mode in accordance with the driver's request.

[Brief description of drawings]

FIG. 1 is an electric circuit diagram of a vehicle safety driving device as one embodiment of the present invention, and FIG. 2 is a front view of a display surface of a warning lamp. 1 ... Power supply, 4 ... Speed detection switch, 5 ... Vehicle speed limit switch, 9 ... Warning buzzer, 12 ... First contact, 13 ...
2nd contact, 19 ... highest stage detection switch, 20 ... solenoid valve,
21 …… Fuel control actuator, 22 …… Fuel injection pump.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location G08B 21/00 J 9177-5G

Claims (1)

[Scope of utility model registration request] 1. A normally closed highest gear detection switch which is turned off when it is detected that the highest gear of a vehicle transmission is selected, a vehicle speed detection switch which outputs an ON output when the vehicle speed exceeds a set value, and the same vehicle speed. A warning sound generator that is connected to the power source when the detection switch is on, a fuel regulation actuator that can regulate the amount of fuel supplied to the internal combustion engine, and a fuel regulation actuator that is in the non-regulation position when on and in the regulation position when off. Solenoid valve for switching operation, solenoid valve drive circuit connecting the solenoid valve to the power source through the above-mentioned highest stage detection switch and the bypass circuit of the highest stage detection switch, and driving of the warning sound generating means First placed on the circuit
The contacts and the second contacts arranged on the bypass circuit of the highest stage detection switch are arranged side by side in a row, and both contacts are turned on to bypass the drive circuit of the warning sound generating means and the highest stage detection switch. A safe driving device for a vehicle having a speed warning state in which a circuit is communicated with each other and a vehicle speed limit switch provided so that a speed limit state in which both contacts are turned off and the detour circuit and the drive circuit are respectively cut off can be selected. .